CD74HC4538E (74HC4538) multivibrator
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Description:
The CD74HC4538E IC includes two monostable multivibrator circuits, each with a trigger input (A and B), an output (Q), and timing components (R and C) to set the pulse width. Monostable multivibrators, also known as one-shots, generate a single output pulse of a specified duration in response to an input trigger. This IC is designed for high-speed operation and low power consumption, making it suitable for precise timing applications.
Key Features:
- Dual precision monostable multivibrator circuits
- High-speed CMOS technology
- Low power consumption
- Wide operating voltage range: 2V to 6V
- Typical propagation delay: 9 ns at VCC = 5V, CL = 15 pF
- Schmitt-trigger inputs for improved noise immunity
- Direct compatibility with TTL input levels
- Package Type: 16-pin DIP (Dual In-line Package)
- Supply Voltage (VCC): 2V to 6V
- Trigger Voltage (VIN): 0V to VCC
- Output Voltage (VOUT): 0V to VCC
- Trigger Pulse Width: Adjustable using external timing components (R and C)
- Triggering Edge: Positive or negative edge-triggered
- Output Pulse Width: Determined by external timing components
- Quiescent Supply Current (ICC): 1 µA (max)
- Operating Temperature Range: -55°C to +125°C
- Precision timing circuits
- Pulse width modulation (PWM) generators
- Frequency dividers and counters
- Delay circuits and timers
- Event synchronization and sequencing
Technical Specifications:
- Logic Family: CMOS
- Number of Channels: 3
- Switch Configuration: Single-Pole Double-Throw (SPDT)
- Supply Voltage Range: 3V to 15V
- “ON” Resistance (R_ON): 125Ω typical at V_DD = 10V
- “OFF” Leakage Current (I_OFF): ±100pA typical at V_DD = 10V
- Control Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Maximum Operating Frequency: 40 MHz at V_DD = 10V
Applications:
- Signal routing and switching
- Analog and digital multiplexing
- Audio and video signal processing
- Data acquisition systems
- Test equipment